Results 101 to 110 of about 7,833 (239)
Harness of room-temperature polar skyrmion bag in oxide superlattice
Nature CommunicationsSkyrmion bag is a higher-order skyrmion-based topological structure that can be used to reduce the risk of data loss in memory devices. It consists of an outer skyrmion wall and several inner skyrmions with opposite polarities.
Linming Zhou +8 more
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Advanced Science, EarlyView.A magneto‐ionic security‐by‐materials‐design strategy exploits voltage‐driven N3– migration in selectively contacted FeCoN dots, creating reconfigurable sub‐15 nm ferromagnetic sublayers with deterministic and/or probabilistic (single‐domain↔vortex) states, voltage‐tunable probabilities and fully stochastic orientation/chirality.
Irena Spasojevic +4 more
wiley +1 more source
Simulation-trained machine learning models for Lorentz transmission electron microscopy
APL Machine LearningUnderstanding the collective behavior of complex spin textures, such as lattices of magnetic skyrmions, is of fundamental importance for exploring and controlling the emergent ordering of these spin textures and inducing phase transitions.
Arthur R. C. McCray +3 more
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Advanced Science, EarlyView.An electro‐templating strategy directs the relaxation of cholesteric finger loops into discrete concentric rings whose geometry is electrically programmed. The photopolymerized structures retain the topological defect pattern and, upon heating, show reversible, castle‐like surface modulation.
Jacques A. Peixoto +4 more
wiley +1 more source
Skyrmion Dynamics for Spintronic Devices [PDF]
, 2013 Magnetic Skyrmion is a topological stable, particle-like spin texture. Its unique proper-ties such as curren-driven motion and topological protected make it to be a candidate forfuture spintronic devices.
Liu, Yizhou
core
Nonuniform gyrotropic oscillation of skyrmion in a nanodisk
AIP Advances, 2018 It was predicted that magnetic skyrmions have potential application in the spin nano-oscillators. The oscillation frequency is a key parameter. In this paper, we study the skyrmion relaxation in a FeGe nanodisk and find that the oscillation frequency ...
Shengjie Xuan, Yan Liu
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Stability and metastability of skyrmions in thin lamellae of Cu_{2}OSeO_{3}
Physical Review Research, 2020 We report small-angle x-ray scattering measurements of the skyrmion lattice in two 200-nm-thick Cu_{2}OSeO_{3} lamellae aligned with the applied magnetic field parallel to the out of plane [110] or [100] crystallographic directions. Our measurements show
M. N. Wilson +8 more
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A Theory of Skyrmion Size in Skyrmion Crystals
, 2021 Abstract A magnetic skyrmion is a topological object that can exist as a solitary embedded in the vast ferromagnetic phase, or coexists with a group of its "siblings" in various stripy phases as well as skyrmion crystals (SkXs). Isolated skyrmions and skyrmions in an SkX are circular while a skyrmion in other phases is a stripe of various forms.
X. R. Wang +3 more
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Skyrmion quantum diode prototype: bridging micromagnetic simulations and quantum models
npj SpintronicsMagnetic skyrmions are topologically protected spin textures known for their robustness against perturbations. Their topological stability makes them robust information carriers, ideal for tackling a key challenge in quantum computing: creating reliable,
Haowen Yang +6 more
doaj +1 more source
Skyrmion number for a generalized vector Poincaré beam
Компьютерная оптикаWe investigate two initial vector Poincaré-type light fields that can be treated as optical skyrmions – topological quasiparticles. For such fields, explicit expressions are obtained for the components of a 3D-vector skyrmionic field in the initial plane
V.V. Kotlyar +2 more
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